BAI 0103 Concealed Thermostatic Shower Mixer/Valve 4-6 Functions (Round Knobs) Delivers precise, consistent temperature control and a generous flow rate Thermostatic valve allows user to set and maintain precise temperature Two diverters with 4-6 functions, laser printed details Designed to fit into standard 3.5" frame wall Concealed brass body construction, stainless steel faceplate